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1; RUN: opt -S -dxil-intrinsic-expansion -dxil-op-lower -mtriple=dxil-pc-shadermodel6.0-library < %s | FileCheck %s2 3; Make sure dxil operation function calls for lerp are generated for float and half.4 5; CHECK-LABEL: lerp_half6; CHECK: fsub half %{{.*}}, %{{.*}}7; CHECK: fmul half %{{.*}}, %{{.*}}8; CHECK: fadd half %{{.*}}, %{{.*}}9define noundef half @lerp_half(half noundef %p0) {10entry:11 %p0.addr = alloca half, align 212 store half %p0, ptr %p0.addr, align 213 %0 = load half, ptr %p0.addr, align 214 %1 = load half, ptr %p0.addr, align 215 %2 = load half, ptr %p0.addr, align 216 %dx.lerp = call half @llvm.dx.lerp.f16(half %0, half %1, half %2)17 ret half %dx.lerp18}19 20; CHECK-LABEL: lerp_float21; CHECK: fsub float %{{.*}}, %{{.*}}22; CHECK: fmul float %{{.*}}, %{{.*}}23; CHECK: fadd float %{{.*}}, %{{.*}}24define noundef float @lerp_float(float noundef %p0, float noundef %p1) {25entry:26 %p1.addr = alloca float, align 427 %p0.addr = alloca float, align 428 store float %p1, ptr %p1.addr, align 429 store float %p0, ptr %p0.addr, align 430 %0 = load float, ptr %p0.addr, align 431 %1 = load float, ptr %p0.addr, align 432 %2 = load float, ptr %p0.addr, align 433 %dx.lerp = call float @llvm.dx.lerp.f32(float %0, float %1, float %2)34 ret float %dx.lerp35}36 37; CHECK-LABEL: lerp_float438; CHECK: fsub <4 x float> %{{.*}}, %{{.*}}39; CHECK: fmul <4 x float> %{{.*}}, %{{.*}}40; CHECK: fadd <4 x float> %{{.*}}, %{{.*}}41define noundef <4 x float> @lerp_float4(<4 x float> noundef %p0, <4 x float> noundef %p1) {42entry:43 %p1.addr = alloca <4 x float>, align 1644 %p0.addr = alloca <4 x float>, align 1645 store <4 x float> %p1, ptr %p1.addr, align 1646 store <4 x float> %p0, ptr %p0.addr, align 1647 %0 = load <4 x float>, ptr %p0.addr, align 1648 %1 = load <4 x float>, ptr %p0.addr, align 1649 %2 = load <4 x float>, ptr %p0.addr, align 1650 %dx.lerp = call <4 x float> @llvm.dx.lerp.v4f32(<4 x float> %0, <4 x float> %1, <4 x float> %2)51 ret <4 x float> %dx.lerp52}53 54declare half @llvm.dx.lerp.f16(half, half, half)55declare float @llvm.dx.lerp.f32(float, float, float)56declare <4 x float> @llvm.dx.lerp.v4f32(<4 x float>, <4 x float>, <4 x float>)57